How can I combine the object with tape?
Create the tape (from a plane) approximating the shape of the battery and wire.
Go into sideview and extrude the plane. (the more accurate this is done the better will be the result)

Subdivide it, to get higher resolution (the more verticies it has the better will be the result). You can use Catmull-Clark or Simple both work.

Duplicate the object you want to get wrapped (select objects and press ctr + d,the location,rotation and scale has to be the same as the original)

Join the duplicated objects to one Mesh and hide the original objects (select the objects you want to hide and press h, select the objects you want to join and press ctrl+j)

Select the tape and add the shrinkwrap modifier


select the object you want to wrap around as target (battery and wire)
set the mode to Project
set the axis to x and z (this depends on the orientation of your scene, ether x and
z or y and z)
check at direction both Positive and Negative






Add a solidify modifier, to add thickness to the tape

Hide (not vieible in viewport and render) the copy and unhide the original objects.
And add smooth shading.



You can increase the subdivision level afterwards to get more or less detail.